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Finding the Fourth Proportional to 116,540.70, 174,811.05 and 87,016.20

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Solution

The fourth proportional to 116,540.70, 174,811.05 and 87,016.20 is: 130,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,540.70 : 174,811.05 = 87,016.20 : x
  2. Step 2: Convert to fraction form
    116,540.70/174,811.05 = 87,016.20/x
  3. Step 3: Cross multiply
    116,540.70x = 174,811.05 × 87,016.20
  4. Step 4: Simplify right side
    116,540.70x = 15,211,393,289.01
  5. Step 5: Solve for x
    x = 15,211,393,289.01/116,540.70
  6. Step 6: Final answer
    x = 130,524.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.